Domestic oil burner



C. WARWICK.

DOMESTIC olL BURNER.

APPLICATION FILED MAY 23. 192|.

E, 9453051 3 l Patented Sept. 26, 1922.

L zo. I6 "lZ 'I 1a I I i 7 4 llllllllllllllllllllll||||I| imam CHARLES WARWCK, OF VANCOUVER, BRTSH COLUMBIA, CANADA, ASSIGNOR TO XVLLIAM RICHRDSON, F VANCOUVER, CANADA.

DOMIJESTIC OIL BURNER.

appncaeon. inea May sa, 1921.

Be it known that l., @Hannes lVAnwioK, citizen of the Dominion of Canada, residing at Vancouver, in the `lrovince of British Columbia, Canada, have invented certain new and useful improvements in Domestic Oil Burners, of which the following is a specification.

This invention relates to an oil vaporizer and burner which has been particularly designed for application to domestic use and to provide a safe and economical means for using a liquid fuel, such coal oil.

The invention is particularly described. in the following specification, reference `being made to the drawings by which it is accompanied, in which: y

Fig. 1 is a centrally vertically longitudinal section.

Fig. 2 is a cross section on the line 2-2 in Fig. 1.

Figure 3 is a cross section of a modiied form of the invention.

Figs. 4e and 5 are detail views of the gauze filling of the vaporizing tube.

lnthese drawings 2 represents an elongated, hollow chamber into which the vaporized oil and air are delivered in a condition for combustion. ln cross section, this chamber is as shown in Fig. 3, the sides rounding to the top with a medial channel 3 between the two ridges so formed.. One end of this chamber 2 is closed by an end plate l secured by screws or studs, and to the opposite end is attached in a similar manner, a mixing chamber 5. The inside of this chamber 2 is lined with a heat nonconducting cement, or if practical the entire chamber may be made of such material.

Extending along the entire length of the burner chamber 2 immediately over the medial channel 3 is au oil vaporizing tube li. the discl'iarge nozzle 7 of which is inserted through au aperture into the mixing chamber 5 and the other end is supported in an aperture iu the end pla-te 4. rllo this end an oil fuel service pipe is connected at e. The tube G for about three-quarters of its length is packed with short rolls 1() of' line mesh wire gauze, and the remainder to ward the discharge tip 7 is packed closely with washers 9 of fine wire gauze approximately fi' ty mesh.

The nozzle tip 7 has a fine axial aperture through which the vaporized oil is delivered Serial No. 471,870.

into the mixing chamber, and adjacent this tip 7 three ports deliver a supply of air to be mixed with the oill'vapour asdelivered through it. The port 11 of one of these air delivery ducts is located immediately above the delivery nozzle '7 and the other two 12 are on the opposite sides and derive their air from below, as shown in Fig. 2.

ln practical alignment with the deliver nozzle 7 is a duct 13, which, see F ig. 1, is curved downward and connects to the cavity of the burner chamber 2.

The upper side of the burner chamber 2 may, as shown in Fig. 1, have a series of transverse slits 14 through which the gas and air issue for combustion, or as shown in Fig.-

3, may have a series of small perforated burner tips 15 of lava inserted at intervals apart, one row of smaller size being arranged along each inner side of the medial channel 3 and directed toward the axis of the vaporizing tube 6.

In operation7 the body of the burner com plete may be supported within the iire-box of an ordinary kitchen stove and the oil fuel is delivered under pressure through a capillary tube connected to the end 8 of the vaporizing chamber. initially the burner is primed with a liquid hydrocarbon in the channel 3 and the heat of this priming flame vaporizes the oil delivered to the tube at 8 as it slowly percolates along the tube through the wire gauze rolls and washers 10 and 9. This filling of the tube@ beingof metal (a conducting material) enables the heat directed on the outside of the tube to be quickly conducted through it and brought intimately in contact with the finely divided oil as it percolates through the filling. This is regarded as one of the important features of the device and differentiates it from those vaporizing tubes which are packed with asbestos libre ortho like non-conducting material. f

The oil vapour being under pressure in. the vaporizing tube rapidly expands when delivered therefrom througlrthe line axial aperture of the tip 7 and mixes freely with the air admitted through the ducts 11 and 12, and being directed forward into the duct 13 which connects with the cavity of the burner a continuous fresh supply ofy air is indrawn.

This combustible mixture of vaporized oil and air burns. ,freely and, completely as it passes through the slits 14 of the burner, or Where a, Wider spread of Haine is required, through the burner tips l5.

The burner may be used Without enclosure in the fire-box of u stove und itt so used rods 16, shown in dot and dash lines in the drawing, are supported at 17 ou the end plete L :ind mixing chamber 5 respectively, 0n which rods any `rtiele may be pla-eed that require to be heated.

Having new particularly deseribed my invention, l hereby declare that what I eluini. as new and desire to be protected in by Letters Patent, is:

An oil fuel burner, Comprising in Conibinetion, :in elongated chamber upertured along its upper side as a. burner7 e Vaporizing` tube disposed mediully along the upper side of the burner chamber and parallel into the burner clizunber, en air duet deliverinfsg from above inte the mixing chumber (tdjaeent the mperizing'- tube end, :md an air duet ou ezieh side opposite rlelivering into the mixing chamber :idjaeent the vaporiziug tube end.

ln testimony whereof Al eliix .my signa-- ture. i

CHARLES Y ARH/10K. 

